Fix bad sleep time

The bad sleep time occurs when pcm_get_htimestamp() fails, leaving
kernel_frames uninitialized and causing out->cur_write_threshold to be
set to a very large value. The following patch ensures kernel_frames is
initialized to a sane value, it should fix most of the "limiting sleep
time" warnings and stuttering audio caused by sleeping too much.

1 files changed, 3 insertions, 1 deletions

diff --git a/audio_hw.c b/audio_hw.c
index 447f55f..334732e 100644
--- a/audio_hw.c
+++ b/audio_hw.c
@@ -715,8 +715,10 @@ static ssize_t out_write(struct audio_stream_out *stream, const void* buffer,
             struct timespec time_stamp;
             if (pcm_get_htimestamp(out->pcm,
                                    (unsigned int *)&kernel_frames,
-                                   &time_stamp) < 0)
+                                   &time_stamp) < 0) {
+                kernel_frames = 0; /* assume no space is available */
                 break;
+            }
             kernel_frames = pcm_get_buffer_size(out->pcm) - kernel_frames;
 
             if (kernel_frames > out->cur_write_threshold) {